processctl() PCTL_SPAWN cmd, scheduler embryo state, redirected pipes

user/init/main.c

@@ -3,6 +3,7 @@
 #include <system/system.h>
 #include <sysdefs/ioctl.h>
 #include <sysdefs/ipcpipe.h>
+#include <sysdefs/processctl.h>
 #include <uprintf.h>
 #include <ansiq/all.h>
 
@@ -29,6 +30,11 @@ void main(void) {
 
   uprintf("Hello world using uprintf\n");
 
+  int32_t tb = processctl(-1, PCTL_SPAWN, (uint64_t)"base:/bin/tb");
+  ipcpipe(tb, IPCPIPE_OUT, IPCPIPE_REPLACE, (uint8_t *)(uint64_t)processctl(-1, PCTL_GETPID, 0), IPCPIPE_OUT);
+  processctl(tb, PCTL_RUN, 0);
+  while(processctl(tb, PCTL_POLLSTATE, 0) != 2);
+
   if (ipcpipe(IPCPIPE_SELFPID, 10, IPCPIPE_MAKE, NULL, 0) < 0) {
     uprintf("failed to create 10th pipe\n");
   }

user/tb/.gitignore

@@ -0,0 +1,2 @@
+*.o
+tb

user/tb/Makefile

@@ -0,0 +1,24 @@
+include $(ROOT)/mk/grabsrc.mk
+include ../Makefile.inc
+
+.PHONY: all clean
+
+TARGET := tb
+
+LDFLAGS += -L$(ROOT)/ulib -l:libulib.a
+
+SRCFILES := $(call GRABSRC, .)
+CFILES := $(call GET_CFILES, $(SRCFILES))
+OBJ := $(call GET_OBJ, $(SRCFILES))
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+all: $(TARGET)
+
+$(TARGET): $(OBJ)
+	$(LD) $^ $(LDFLAGS) -o $@
+	echo $$(realpath $(TARGET)) >> $(FILES)
+
+clean:
+	rm -f $(OBJ) $(TARGET)

user/tb/main.c

@@ -0,0 +1,5 @@
+#include <uprintf.h>
+
+void main(void) {
+  uprintf("Hello from tb!\n");
+}